1. 1. In place of 40 CFR 60.43(a)(2), the following language shall be substituted: 340 nanograms per joule heat input (0.8 pounds per million Btu) derived from solid fossil fuel or solid fossil fuel and wood residue.
2. 2. Delete 40 CFR 60.43(b).

3. 3. If an owner or operator of a fossil-fuel fired steam generator obtained an installation permit for two or more fuel-burning equipment or steam-power generating installations before May 14, 1979, that permitted the installation to comply with the sulfur dioxide emission standards specified in R18-2-901 and this Section as if the equipment or installations were one emission discharge point:

   1. a. The owner or operator shall comply with the applicable sulfur dioxide emission standards in the manner specified in the installation permit;
   2. b. The Department shall incorporate the emission standards under subsection (3)(a) into each owner’s or operator’s operating permit as an enforceable permit condition;

   3. c. No single fuel-burning equipment or steam-power generating installation shall emit sulfur dioxide in excess of:

      1. i. 520 nanograms per joule heat input (1.2 pounds per million BTU) for solid fossil fuel or solid fossil fuel and wood residue; or
      2. ii. 340 nanograms per joule heat input (0.8 pounds per million BTU) for liquid fossil fuel or liquid fossil fuel and wood residue.

4. 4. When an owner or operator subject to subsection (3) changes the equipment configuration so that each fuel-burning equipment or steam-powered generating installation constitutes one emission discharge point:

   1. a. The owner or operator shall comply with the emissions standards specified in subsection (1) and R18-2-901; and
   2. b. The Department shall incorporate the emissions standards into the owner’s or operator’s operating permit as enforceable permit conditions.

As exceptions to 40 CFR 60.40 through 60.47:

Historical Note

Adopted effective May 14, 1979 (Supp. 79-1). Amended effective May 28, 1982 (Supp. 82-3). Former Section R9-3-903 renumbered without change as Section R18-2-903 (Supp. 87-3). Repealed effective February 26, 1988 (Supp. 88-1). New Section R18-2-903 renumbered from R18-2-803 and amended effective November 15, 1993 (Supp. 93-4). Amended by final rulemaking at 14 A.A.R. 230, effective March 8, 2008 (Supp. 08-1).